Luận án Nghiên cứu sử dụng xúc tác quang hóa trên cơ sở hydroxit lớp đôi znbi2o4 / graphit và znbi2o4 / bi2s3 định hướng xử lý chất màu hữu cơ

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Zeng Xiaohong, Leng Hui Li, Synthesis and applications of novel graphitic carbon nitride metal- organic frameworks mesoporous photocatalyst for dyes removal. Applied catalysis b 2015. 174/175: p. 445-454 136 PHỤ LỤC Phụ lục 1. Số liệu thí nghiệm ảnh hưởng của lượng Graphit biến tính trên xúc tác ZnBi2O4/1.0Graphit đến quá trình phân hủy RhB. Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 6,3; nồng độ IC ban đầu 50mg/L. Thời gian (phút) KXT ZnBi2O4 ZnBi2O4/1.0Graphit ZnBi2O4/2.0Graphit Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,000 -30 0,996 0,0497 0,816 0,0463 0,741 0,0371 0,827 0,0364 0 0,996 0,0497 0,816 0,0463 0,741 0,0371 0,827 0,0364 15 0,987 0,0494 0,792 0,0451 0,666 0,0333 0,788 0,0344 30 0,973 0,0486 0,756 0,0433 0,611 0,0306 0,739 0,0319 45 0,945 0,0473 0,706 0,0408 0,477 0,0268 0,687 0,0294 60 0,933 0,0466 0,670 0,0390 0,372 0,0451 0,623 0,0523 90 0,878 0,0439 0,608 0,0359 0,242 0,0320 0,460 0,0359 120 0,838 0,0419 0,572 0,0341 0,159 0,0159 0,322 0,0222 150 0,811 0,0406 0,511 0,0311 0,0618 0,00618 0,206 0,0106 137 Phụ lục 1. Số liệu thí nghiệm ảnh hưởng của lượng Graphit biến tính trên xúc tác ZnBi2O4/1.0Graphit đến quá trình phân hủy RhB. Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 6,3; nồng độ IC ban đầu 50mg/L. Thời gian (phút) ZnBi2O4/5.0Graphit ZnBi2O4/10.0Graphit ZnBi2O4/20.0Graphit Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,863 0,0382 0,852 0,0376 0,879 0,0369 0 0,863 0,0382 0,852 0,0376 0,879 0,0369 15 0,811 0,0356 0,801 0,0351 0,859 0,0369 30 0,747 0,0324 0,788 0,0344 0,839 0,0369 45 0,682 0,0291 0,739 0,0319 0,801 0,0351 60 0,618 0,0518 0,713 0,0613 0,762 0,0331 90 0,476 0,0376 0,611 0,0511 0,750 0,0325 120 0,349 0,0249 0,509 0,0409 0,713 0,0306 150 0,245 0,0145 0,434 0,0334 0,662 0,0281 138 Phụ lục 2. Số liệu thí nghiệm ảnh hưởng của lượng xúc tác ZnBi2O4/1.0Graphit đến quá trình phân hủy RhB. Điều kiện thí nghiệm: nồng độ RhB 50 mg/L; pH 6,3. Thời gian (phút) 0,5 g/L 1,0 g/L 1,5 g/L 2,0 g/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1 0 1 0 1 0 1 0 -30 0,846 0,0423 0,741 0,0371 0,712 0,0371 0,694 0,0347 0 0,846 0,0423 0,741 0,0371 0,712 0,0371 0,694 0,0347 15 0,774 0,0387 0,666 0,0333 0,642 0,0333 0,612 0,0306 30 0,697 0,0348 0,611 0,0306 0,591 0,0306 0,572 0,0286 45 0,619 0,0309 0,477 0,0268 0,558 0,0268 0,477 0,0239 60 0,560 0,0278 0,372 0,0451 0,472 0,0451 0,416 0,0208 90 0,492 0,0246 0,242 0,0320 0,332 0,0320 0,360 0,0190 120 0,450 0,0225 0,159 0,0159 0,170 0,0259 0,305 0,0180 150 0,430 0,0215 0,0618 0,00618 0,041 0,0218 0,240 0,0160 139 Phụ lục 3. Số liệu thí nghiệm ảnh hưởng của nồng độ RhB đến quá trình phân hủy RhB trên xúc tác ZnBi2O4/1.0Graphit. Điều kiện thí nghiệm: nồng độ RhB 50 mg/L; pH 6,3; lượng xúc tác 1,0 g/L. Thời gian (phút) 30 mg/L 40 mg/L 50 mg/L 60 mg/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1 0 1 0 1 0 1 0 -30 0,700 0,0350 0,723 0,0365 0,741 0,0371 0,759 0,0380 0 0,700 0,0350 0,723 0,0365 0,741 0,0371 0,759 0,0380 15 0,600 0,0300 0,654 0,0327 0,666 0,0333 0,679 0,0339 30 0,520 0,0260 0,603 0,0302 0,611 0,0306 0,620 0,0310 45 0,420 0,0210 0,514 0,0257 0,477 0,0268 0,579 0,0290 60 0,300 0,0300 0,416 0,0316 0,372 0,0451 0,498 0,0498 90 0,100 0,0200 0,252 0,0212 0,242 0,0320 0,399 0,0399 120 0 0 0,130 0,0120 0,159 0,0159 0,258 0,0258 150 0 -- 0,039 0,0029 0,0618 0,00618 0,168 0,0168 140 Phụ lục 4. Số liệu thí nghiệm ảnh hưởng của pH đến quá trình phân hủy RhB trên xúc tác quang ZnBi2O4/1.0Graphit. Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; nồng độ RhB ban đầu 50mg/L. Thời gian (phút) pH 2,0 pH 4,5 pH 7,0 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1 0 1 0 1 0 -30 0,741 0,0371 0,940 0,047 0,980 0,0490 0 0,741 0,0371 0,940 0,047 0,980 0,0490 15 0,666 0,0333 0,890 0,0445 0,950 0,0475 30 0,611 0,0306 0,850 0,0425 0,910 0,0455 45 0,477 0,0268 0,790 0,0395 0,870 0,0435 60 0,372 0,0451 0,700 0,0350 0,810 0,0405 90 0,242 0,0320 0,560 0,0280 0,630 0,0315 120 0,159 0,0159 0,400 0,0200 0,470 0,0235 150 0,0618 0,0021 0,278 0,0139 0,340 0,0170 141 Phụ lục 5: Số liệu thí nghiệm bẫy các gốc tự do và lỗ trống quang sinh của quá trình phân hủy RhB trên xúc tác ZnBi2O4/1.0Graphit. Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 6,3; nồng độ RhB ban đầu 50mg/L. Thời gian (phút) no quencher Tert-butanol p-benzoquinone Na2-EDTA AgNO3 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1 0 1 0 1 0 1 0 1 0 -30 0,741 0,0371 0,734 0,0367 0,740 0,0370 0,752 0,0376 0,712 0,0356 0 0,741 0,0371 0,734 0,0367 0,740 0,0370 0,752 0,0376 0,712 0,0356 15 0,666 0,0333 0,693 0,0346 0,691 0,0346 0,725 0,0362 0,581 0,0290 30 0,611 0,0306 0,669 0,0335 0,660 0,0330 0,704 0,0352 0,520 0,0260 45 0,477 0,0268 0,574 0,0287 0,634 0,0324 0,683 0,0342 0,451 0,0225 60 0,372 0,0451 0,493 0,0493 0,613 0,0319 0,673 0,0337 0,382 0,0382 90 0,242 0,0320 0,396 0,0396 0,603 0,0317 0,662 0,0331 0,251 0,0251 120 0,159 0,0159 0,211 0,0211 0,581 0,0307 0,654 0,0327 0,121 0,0121 150 0,0618 0,00618 0,110 0,0110 0,550 0,0301 0,642 0,0321 0,0400 0,00400 142 Phụ lục 6. Số liệu thí nghiệm ảnh hưởng của lượng Graphit trong xúc tác ZnBi2O4/x.0Graphit đến quá trình phân hủy IC. Điều kiện thí nghiệm: lượng xúc tác 0,5 g/L; pH dung dịch 6,3; nồng độ IC ban đầu 50mg/L. Thời gian (phút) KXT Graphit ZnBi2O4 ZnBi2O4/1.0Graphit Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0 1,000 0,0000 1,000 0,0000 -30 1,000 0,0100 0,690 0,0071 0,905 0,0061 0,913 0,0092 0 1,000 0,0100 0,690 0,0071 0,905 0,0061 0,913 0,0092 15 0,978 0,0099 0,680 0,0082 0,888 0,0085 0,880 0,0067 30 0,968 0,0097 0,675 0,0091 0,878 0,0083 0,835 0,0060 45 0,963 0,0095 0,668 0,0075 0,858 0,0081 0,821 0,0074 60 0,953 0,0093 0,665 0,0077 0,825 0,0079 0,785 0,0090 90 0,950 0,0088 0,663 0,0051 0,803 0,0076 0,745 0,0064 120 0,945 0,0084 0,660 0,0075 0,785 0,0064 0,700 0,0072 150 0,945 0,0081 0,660 0,0076 0,775 0,0071 0,688 0,0078 143 Phụ lục 6. Số liệu thí nghiệm ảnh hưởng của lượng Graphit trong xúc tác ZnBi2O4/x.0Graphit đến quá trình phân hủy IC. Điều kiện thí nghiệm: lượng xúc tác 0,5 g/L; pH dung dịch 6,3; nồng độ IC ban đầu 50mg/L. Thời gian (phút) ZnBi2O4/2.0Graphit ZnBi2O4/5.0Graphit ZnBi2O4/10.0Graphit ZnBi2O4/20.0Graphit Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,907 0,0082 0,885 0,0079 0,895 0,0054 0,875 0,0081 0 0,907 0,0082 0,885 0,0079 0,895 0,0054 0,875 0,0081 15 0,874 0,0074 0,808 0,0086 0,873 0,0075 0,868 0,0097 30 0,829 0,0082 0,775 0,0082 0,850 0,0084 0,850 0,0077 45 0,755 0,0069 0,738 0,0079 0,819 0,0082 0,835 0,0085 60 0,713 0,0052 0,700 0,0082 0,780 0,0061 0,825 0,0083 90 0,675 0,0086 0,650 0,0068 0,755 0,0051 0,805 0,0063 120 0,663 0,0052 0,613 0,0085 0,740 0,0071 0,800 0,0061 150 0,653 0,0071 0,575 0,0075 0,725 0,0073 0,800 0,0078 144 Phụ lục 7: Số liệu thí nghiệm ảnh hưởng của lượng xúc tác ZnBi2O4/5.0Graphit đến quá trình phân hủy IC. Điều kiện thí nghiệm: nồng độ IC 50 mg/L; pH 6,3. Thời gian (phút) 0,2 g/L 0,5 g/L 1,0 g/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,913 0,0147 0,885 0,0230 0,775 0,0159 0 0,913 0,0147 0,885 0,0230 0,775 0,0159 15 0,855 0,0306 0,808 0,0387 0,750 0,0133 30 0,828 0,0186 0,775 0,0348 0,738 0,0106 45 0,810 0,0239 0,738 0,0309 0,705 0,0268 60 0,793 0,0208 0,700 0,0280 0,693 0,0151 90 0,755 0,0190 0,650 0,0246 0,665 0,0121 120 0,733 0,0180 0,613 0,0225 0,653 0,0159 150 0,720 0,0160 0,575 0,0215 0,643 0,0062 145 Phụ lục 8. Số liệu thí nghiệm ảnh hưởng của nồng độ IC đến quá trình phân hủy IC của xúc tác ZnBi2O4/5.0Graphit. Điều kiện thí nghiệm: nồng độ IC 50 mg/L; pH 6,3; lượng xúc tác 0,5 g/L. Thời gian (phút) 15mg/L 30 mg/L 40 mg/L 50 mg/L 60 mg/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,769 0,0142 0,840 0,0235 0,867 0,0365 0,885 0,0159 0,787 0,0380 0 0,769 0,0142 0,840 0,0235 0,867 0,0365 0,885 0,0159 0,787 0,0380 15 0,692 0,0105 0,760 0,0102 0,833 0,0327 0,808 0,0233 0,781 0,0339 30 0,616 0,0081 0,700 0,0051 0,803 0,0302 0,775 0,0255 0,766 0,0310 45 0,500 0,0075 0,648 0,0082 0,767 0,0257 0,738 0,0268 0,745 0,0290 60 0,462 0,0063 0,616 0,0057 0,707 0,0216 0,700 0,0251 0,723 0,0498 90 0,385 0,0052 0,556 0,0056 0,607 0,0252 0,650 0,0321 0,709 0,0399 120 0,231 0,0086 0,480 0,0062 0,507 0,0130 0,613 0,0159 0,702 0,0258 150 0,154 0,0062 0,320 0,0030 0,440 0,0194 0,570 0,0177 0,681 0,0168 146 Phụ lục 9. Số liệu thí nghiệm ảnh hưởng của pH đến quá trình phân hủy IC của xúc tác ZnBi2O4/5.0Graphit Điều kiện thí nghiệm: lượng xúc tác 0,5 g/L; nồng độ RhB ban đầu 50mg/L. Thời gian (phút) pH 6,3 pH 4,0 pH 7,0 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,885 0,0086 0,910 0,0070 0,888 0,0081 0 0,885 0,0086 0,910 0,0070 0,888 0,0081 15 0,808 0,0073 0,858 0,0085 0,827 0,0075 30 0,775 0,0081 0,803 0,0073 0,788 0,0075 45 0,738 0,0068 0,790 0,0070 0,755 0,0074 60 0,700 0,0075 0,770 0,0075 0,729 0,0080 90 0,650 0,0071 0,738 0,0078 0,703 0,0092 120 0,613 0,0076 0,723 0,0070 0,670 0,0082 150 0,575 0,0082 0,703 0,0079 0,635 0,0072 147 Phụ lục 10. Số liệu thí nghiệm ảnh hưởng của lượng Bi2S3 biến tính trên xúc tác ZnBi2O4/x.0Bi2S3 đến quá trình phân hủy IC Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 6,3; nồng độ IC ban đầu 50mg/L. Thời gian (phút) KXT ZnBi2O4 ZnBi2O4/1.0Bi2S3 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1 0 1 0 1 0 -30 1,000 0,0100 0,896 0,0448 0,823 0,0494 0 1,000 0,0100 0,896 0,0448 0,823 0,0494 15 0,950 0,0475 0,868 0,0334 0,535 0,0536 30 0,950 0,0275 0,829 0,0214 0,487 0,0487 45 0,935 0,0168 0,783 0,0391 0,364 0,0364 60 0,920 0,0260 0,756 0,0178 0,291 0,0291 Thời gian (phút) ZnBi2O4/2.0Bi2S3 ZnBi2O4/6.0Bi2S3 ZnBi2O4/12.0Bi2S3 ZnBi2O4/20.0Bi2S3 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,762 0,0457 0,737 0,0443 0,713 0,0428 0,745 0,0447 0 0,762 0,0457 0,737 0,0443 0,713 0,0428 0,745 0,0447 15 0,487 0,0487 0,413 0,0413 0,370 0,0370 0,548 0,0548 30 0,413 0,0413 0,364 0,0364 0,127 0,0127 0,424 0,0424 45 0,291 0,0291 0,218 0,0218 0,071 0,0071 0,196 0,0196 60 0,242 0,0242 0,173 0,0173 0,026 0,0026 0,146 0,0146 148 Phụ lục 11. Số liệu thí nghiệm ảnh hưởng của lượng xúc tác ZnBi2O4/12.0Bi2S3 đến quá trình phân hủy IC. Điều kiện thí nghiệm: nồng độ IC ban đầu 50 mg/L; pH dung dịch 6,3. Thời gian (phút) 0,2 g/L 0,5g/L 1,0 g/L 2,0 g/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,849 0,0540 0,762 0,0405 0,713 0,0428 0,787 0,0647 0 0,849 0,0540 0,762 0,0405 0,713 0,0428 0,787 0,0647 15 0,799 0,0400 0,614 0,0307 0,370 0,0370 0,667 0,0300 30 0,710 0,0255 0,563 0,0163 0,127 0,0127 0,486 0,0319 45 0,648 0,0324 0,537 0,0337 0,071 0,0071 0,306 0,0238 60 0,595 0,0298 0,486 0,0194 0,026 0,0026 0,229 0,0210 Phụ lục 12. Số liệu thí nghiệm ảnh hưởng của nồng độ IC ban đầu đến quá trình phân hủy IC của xúc tác ZnBi2O4/12.0Bi2S3 Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 6,3. Thời gian (phút) 30 mg/L 40 mg/L 50 mg/L 60 mg/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,589 0,0413 0,678 0,0475 0,713 0,0428 0,773 0,0541 0 0,589 0,0413 0,678 0,0475 0,713 0,0428 0,773 0,0541 15 0,265 0,0185 0,332 0,0232 0,370 0,0370 0,466 0,0327 30 0,073 0,0051 0,137 0,0096 0,127 0,0127 0,222 0,0155 45 0,008 0,0012 0,040 0,0028 0,071 0,0071 0,143 0,0100 60 0,000 0,0000 0,009 0,0014 0,026 0,0026 0,081 0,0057 149 Phụ lục 13. Số liệu thí nghiệm ảnh hưởng của pH dung dịch đến quá trình phân hủy IC của xúc tác ZnBi2O4/12.0Bi2S3 Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L, nồng độ IC ban đầu 50mg/L. Thời gian (phút) pH 4,0 pH 6,3 pH 7,0 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,728 0,0291 0,713 0,0428 0,764 0,0305 0 0,728 0,0291 0,713 0,0428 0,764 0,0305 15 0,483 0,0193 0,370 0,0370 0,537 0,0215 30 0,187 0,0131 0,127 0,0127 0,280 0,0112 45 0,100 0,0070 0,071 0,0071 0,229 0,0092 60 0,092 0,0065 0,026 0,0026 0,177 0,0071 Phụ lục 14. Số liệu thí nghiệm bẫy các gốc tự do và lỗ trống quang sinh của quá trình phân hủy IC của xúc tác ZnBi2O4/12.0Bi2S3 Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 6,3; nồng độ IC ban đầu 50mg/L. Thờigian (phút) No quencher Tert-butanol P-benzoquinone Na2-EDTA Purge O2 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,713 0,0428 0,719 0,0288 0,695 0,0417 0,702 0,0351 0,736 0,0295 0 0,713 0,0428 0,719 0,0288 0,695 0,0417 0,702 0,0351 0,736 0,0295 15 0,370 0,0370 0,471 0,0189 0,645 0,0194 0,586 0,0234 0,334 0,0134 30 0,127 0,0127 0,257 0,0103 0,590 0,0236 0,477 0,0191 0,073 0,0059 45 0,071 0,0071 0,177 0,0089 0,575 0,0115 0,332 0,0133 0,018 0,0018 60 0,026 0,0026 0,068 0,0055 0,544 0,0163 0,297 0,0119 0,000 0,0000 150 Phụ lục 15. Số liệu thí nghiệm ảnh hưởng của lượng Bi2S3 trong xúc tác ZnBi2O4/x.0Bi2S3 đến quá trình phân hủy RhB. Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 2,0; nồng độ RhB ban đầu 50mg/L. Thờigian (phút) KXT ZnBi2O4 ZnBi2O4/1.0Bi2S3 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,996 0,0150 0,902 0,0361 0,880 0,0333 0 0,996 0,0150 0,902 0,0361 0,880 0,0333 15 0,987 0.0249 0,866 0,0246 0,837 0,0306 30 0,973 0,0286 0,813 0,0384 0,815 0,0268 45 0,954 0,0173 0,784 0,0299 0,761 0,0451 60 0,943 0,0247 0,746 0,0166 0,717 0,0321 75 0,935 0,0191 0,721 0,0316 0,663 0,0159 90 0,928 0,0242 0,703 0,0240 0,619 0,0062 Thời gian (phút) ZnBi2O4/2.0Bi2S3 ZnBi2O4/6.0Bi2S3 ZnBi2O4/12.0Bi2S3 ZnBi2O4/20.0Bi2S3 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,863 0,0351 0,880 0,0344 0,875 0,0356 0,826 0,0369 0 0,863 0,0351 0,880 0,0344 0,875 0,0356 0,826 0,0369 15 0,837 0,0344 0,848 0,0319 0,784 0,0324 0,819 0,0351 30 0,771 0,0319 0,746 0,0294 0,663 0,0291 0,804 0,0331 45 0,641 0,0613 0,617 0,0523 0,531 0,0518 0,731 0,0325 60 0,617 0,0511 0,543 0,0360 0,428 0,0377 0,694 0,0307 75 0,586 0,0409 0,510 0,0222 0,359 0,0249 0,655 0,0281 90 0,543 0,0334 0,467 0,0106 0,291 0,0145 0,644 0,0281 151 Phụ lục 16. Số liệu thí nghiệm ảnh hưởng của pH dung dịch đến quá trình phân hủy RhB của xúc tác ZnBi2O4/12.0Bi2S3 Điều kiện thí nghiệm: Lượng xúc tác 1,0 g/L; nồng độ RhB ban đầu 50mg/L. Thời gian (phút) pH 2,0 pH 4,5 pH 7,0 Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,854 0,0333 0,875 0,0356 0,946 0,0241 0 0,854 0,0333 0,875 0,0356 0,946 0,0241 15 0,718 0,0306 0,784 0,0324 0,891 0,0354 30 0,532 0,0268 0,663 0,0291 0,761 0,0286 45 0,427 0,0245 0,531 0,0279 0,717 0,0239 60 0,249 0,0321 0,428 0,0377 0,663 0,0208 75 0,157 0,0159 0,359 0,0249 0,586 0,0190 90 0,108 0,0062 0,291 0,0145 0,510 0,0180 152 Phụ lục 17. Số liệu thí nghiệm ảnh hưởng của lượng xúc tác quang ZnBi2O4/12.0Bi2S3 đến quá trình phân hủy RhB. Điều kiện thí nghiệm: nồng độ RhB ban đầu 50 mg/L; pH dung dịch 2,0. Thời gian (phút) 0,2 g/L 0,5g/L 1,0 g/L 2,0 g/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,957 0,0333 0,915 0,0239 0,854 0,0333 0,811 0,0333 0 0,957 0,0333 0,915 0,0239 0,854 0,0333 0,811 0,0333 15 0,873 0,0306 0,837 0,0348 0,718 0,0306 0,727 0,0306 30 0,802 0,0268 0,666 0,0309 0,532 0,0268 0,569 0,0268 45 0,715 0,0245 0,561 0,0280 0,427 0,0245 0,433 0,0451 60 0,615 0,0321 0,413 0,0246 0,249 0,0321 0,352 0,0321 75 0,554 0,0159 0,335 0,0225 0,157 0,0159 0,243 0,0259 90 0,502 0,0062 0,280 0,0215 0,108 0,0062 0,211 0,0218 153 Phụ lục 18. Số liệu thí nghiệm ảnh hưởng của nồng độ ban đầu đến quá trình phân hủy RhB trên xúc tác ZnBi2O4/12.0Bi2S3 Điều kiện thí nghiệm: lượng xúc tác 1,0 g/L; pH dung dịch 2,0. Thời gian (phút) 15 mg/L 30 mg/L 50 mg/L 60 mg/L Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,704 0,0280 0,752 0,0280 0,854 0,0333 0,907 0,0188 0 0,704 0,0280 0,752 0,0280 0,854 0,0333 0,907 0,0188 15 0,427 0,0248 0,585 0,0248 0,718 0,0306 0,832 0,0338 30 0,178 0,0321 0,389 0,0321 0,532 0,0268 0,747 0,0318 45 0,000 0,0259 0,134 0,0259 0,427 0,0245 0,643 0,0365 60 -- -- 0,005 0,0020 0,249 0,0321 0,536 0,0240 75 -- -- -- -- 0,157 0,0159 0,435 0,0258 90 -- -- -- -- 0,108 0,0062 0,394 0,0168 154 Phụ lục 19. Số liệu thí nghiệm bẫy các gốc tự do và lỗ trống quang sinh của quá trình phân hủy RhB của xúc tác ZnBi2O4-12.0Bi2S3 Điều kiện thí nghiệm: Lượng xúc tác 1,0 g/L; pH dung dịch 2,0; nồng độ RhB ban đầu 50mg/L. Thờigian (phút) No quencher Tert-butanol p-benzoquinone Na2-EDTA Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD Ct/Cbđ SD -60 1,000 0,0000 1,000 0,0000 1,000 0,0000 1,000 0,0000 -30 0,854 0,0333 0,881 0,0287 0,831 0,0318 0,864 0,0281 0 0,854 0,0333 0,881 0,0287 0,831 0,0318 0,864 0,0281 15 0,718 0,0306 0,818 0,0346 0,778 0,0264 0,852 0,0341 30 0,532 0,0268 0,726 0,0260 0,749 0,0295 0,841 0,0335 45 0,427 0,0245 0,584 0,0293 0,726 0,0241 0,778 0,0280 60 0,249 0,0321 0,531 0,0237 0,703 0,0294 0,749 0,0236 75 0,157 0,0159 0,428 0,0286 0,663 0,0216 0,726 0,0193 90 0,108 0,0062 0,359 0,0176 0,609 0,0287 0,703 0,0203 155 Phụ lục 20: Kết quả đo BET mẫu ZnBi2O4 Phụ lục 21: Kết quả đo BET mẫu ZnBi2O4 /1.0Graphit 156 Phụ lục 22: Kết quả đo BET mẫu ZnBi2O4 /12.0Bi2S3 1 Phụ lục 23 157 ZnBi2O4 Date:06/07/2016 HV:20.0kV Phụ lục 24 Phụ lục 24 2 4 6 8 10 12 14 keV 0 1 2 3 4 5 6 cps/eV C O Zn Bi Bi EDS DATA QUANTAX 200 Center for Chemical Analysis Spectrum: ZnBi2O4 El AN Series unn. C norm. C Atom. C Error (3 Sigma) [wt.%] [wt.%] [at.%] [wt.%] ----------------------------------------------------- C 6 K-series 1.67 1.87 7.94 1.28 O 8 K-series 13.63 15.30 48.72 5.86 Zn 30 K-series 38.55 43.27 33.71 3.32 Bi 83 L-series 35.23 39.55 9.64 3.81 ----------------------------------------------------- Total: 89.07 100.00 100.00 Center for Chemical Analysis 158 Phụ lục 24 Phụ lục 25 Phụ lục 25 Graphite/ZnBi2O4 Date:06/07/2018 HV:20.0kV 2 4 6 8 10 12 14 keV 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 cps/eV C O Bi Bi Zn EDS DATA QUANTAX 200 Center for Chemical Analysis Spectrum: Graphite/ZnBi2O4 El AN Series unn. C norm. C Atom. C Error (3 Sigma) [wt.%] [wt.%] [at.%] [wt.%] ----------------------------------------------------- C 6 K-series 4.17 4.39 14.90 1.99 O 8 K-series 14.47 19.21 48.23 5.79 Zn 30 K-series 29.05 33.41 29.01 2.55 Bi 83 L-series 35.90 42.99 9.76 3.77 ----------------------------------------------------- Total: 83.59 100.00 100.00 159 ical Analys EDS DATA Bi2S3/ZnBi2O4 Date:06/07/2018 HV:20.0kV 2 4 6 8 10 12 14 keV 0 1 2 3 4 5 6 cps/eV C O S Zn Bi Bi EDS DATA QUANTAX 200 Spectrum: Bi2S3/ZnBi2O4 El AN Series unn. C norm. C Atom. C Error (3 Sigma) [wt.%] [wt.%] [at.%] [wt.%] ----------------------------------------------------- C 6 K-series 1.24 0.84 4.56 1.03 O 8 K-series 11.47 13.21 48.76 5.79 S 16 K-series 2.76 1.94 4.85 0.40 Zn 30 K-series 31.53 33.93 28.19 2.75 Bi 83 L-series 45.78 50.08 13.64 5.02 Total: 92.78 100.00 100.00 Center for Chemical Analysis