Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B
In this study, modified sludge biochar(ASBC) was prepared by impregnation-pyrolysis method with municipal sludge as raw material and ZnCl2 as activator. ASBC/Peroxymonosulfate(PMS) system was constructed and used to degrade Rhodamine B(RhB). The effects of ASBC dosage, PMS concentration, reaction pH...
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| Format: | Article |
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Editorial Office of Industrial Water Treatment
2024-12-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1133 |
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| author | XIONG Yuting LUO Caigui TANG Xuekun LUO Xianping |
| author_facet | XIONG Yuting LUO Caigui TANG Xuekun LUO Xianping |
| author_sort | XIONG Yuting |
| collection | DOAJ |
| description | In this study, modified sludge biochar(ASBC) was prepared by impregnation-pyrolysis method with municipal sludge as raw material and ZnCl2 as activator. ASBC/Peroxymonosulfate(PMS) system was constructed and used to degrade Rhodamine B(RhB). The effects of ASBC dosage, PMS concentration, reaction pH, and co-existing inorganic anions on the degradation of RhB in ASBC/PMS system were investigated. BET results showed that the specific surface area of activated biochar increased from 8.19 m2/g to 175.04 m2/g, pore volume increased from 0.017 cm3/g to 0.189 cm3/g, and activated sludge biochar had more active sites. When the dosage of ASBC was 0.2 g/L and the concentration of PMS was 0.8 mmol/L, the removal rate of RhB was as high as 99.7% after 5 min reaction, and the reaction could work in a wide pH range(3-11). H2PO4- and NO3- had no significant effect on the degradation of ASBC/PMS system, HCO3- had inhibitory effect and Cl- had promotional effect. RhB degradation by ASBC/PMS system was a non-radical pathway with 1O2 as the main active substance. |
| format | Article |
| id | doaj-art-ce06313f108b4677b0f77f20acd111ee |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-ce06313f108b4677b0f77f20acd111ee2025-01-14T02:07:08ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2024-12-0144129410310.19965/j.cnki.iwt.2023-11331005-829X（2024）12-0094-10Study on the performance of mesoporous sludge biochar for the removal of Rhodamine BXIONG Yuting0LUO Caigui1TANG Xuekun2LUO Xianping3Jiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science and Technology, Ganzhou341000, ChinaJiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science and Technology, Ganzhou341000, ChinaJiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science and Technology, Ganzhou341000, ChinaJiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science and Technology, Ganzhou341000, ChinaIn this study, modified sludge biochar(ASBC) was prepared by impregnation-pyrolysis method with municipal sludge as raw material and ZnCl2 as activator. ASBC/Peroxymonosulfate(PMS) system was constructed and used to degrade Rhodamine B(RhB). The effects of ASBC dosage, PMS concentration, reaction pH, and co-existing inorganic anions on the degradation of RhB in ASBC/PMS system were investigated. BET results showed that the specific surface area of activated biochar increased from 8.19 m2/g to 175.04 m2/g, pore volume increased from 0.017 cm3/g to 0.189 cm3/g, and activated sludge biochar had more active sites. When the dosage of ASBC was 0.2 g/L and the concentration of PMS was 0.8 mmol/L, the removal rate of RhB was as high as 99.7% after 5 min reaction, and the reaction could work in a wide pH range(3-11). H2PO4- and NO3- had no significant effect on the degradation of ASBC/PMS system, HCO3- had inhibitory effect and Cl- had promotional effect. RhB degradation by ASBC/PMS system was a non-radical pathway with 1O2 as the main active substance.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1133modification of zncl2sludge biocharperoxymonosulfaterhodamine bnon-radical |
| spellingShingle | XIONG Yuting LUO Caigui TANG Xuekun LUO Xianping Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B Gongye shui chuli modification of zncl2 sludge biochar peroxymonosulfate rhodamine b non-radical |
| title | Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B |
| title_full | Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B |
| title_fullStr | Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B |
| title_full_unstemmed | Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B |
| title_short | Study on the performance of mesoporous sludge biochar for the removal of Rhodamine B |
| title_sort | study on the performance of mesoporous sludge biochar for the removal of rhodamine b |
| topic | modification of zncl2 sludge biochar peroxymonosulfate rhodamine b non-radical |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1133 |
| work_keys_str_mv | AT xiongyuting studyontheperformanceofmesoporoussludgebiocharfortheremovalofrhodamineb AT luocaigui studyontheperformanceofmesoporoussludgebiocharfortheremovalofrhodamineb AT tangxuekun studyontheperformanceofmesoporoussludgebiocharfortheremovalofrhodamineb AT luoxianping studyontheperformanceofmesoporoussludgebiocharfortheremovalofrhodamineb |