Photocatalytic Degradation of Bisphenol a by Sulfur-Modified Cadmium-Rich Biomass Carbon

doi:10.13438/j.cnki.jdzk.2022.04.013

Abstract

Abstract: Using biomass sorghum after remediation of cadmium-contaminated soil as raw material,sulfur-modified biochar based photocatalyst was prepared by calcination and hydrothermal reaction.The morphology and crystal structure of the photocatalyst were analyzed by scanning electron microscopy and X-ray diffraction.The results showed that cadmium sulfide crystals were successfully loaded on the biochar.The photocatalytic degradation experiment found that the photocatalyst can rapidly degrade bisphenol A (BPA) in water,and its photocatalytic degradation rate is 15.5 times and 2.4 times that of biomass sorghum biochar and cadmium sulfide,respectively.The influencing factor experiment found that the acidic conditions and the increase of the material dosage can significantly improve the photocatalytic degradation rate of BPA.Cycling experiments showed that the material has good photocatalytic stability,and quenching experiments showed that the main active species in the reaction are holes (h⁺),followed by ·OH and ·O^-2.

Key words: biomass sorghum, biochar, photocatalysis, BPA

CAO Jiaji, WANG Ping, LING Dingxun, HUANG Chao. Photocatalytic Degradation of Bisphenol a by Sulfur-Modified Cadmium-Rich Biomass Carbon[J]. Journal of Jishou University(Natural Sciences Edition), 2022, 43(4): 72-80.

References

[1] 中国农业新闻网.全国土壤污染状况调查公报显示：我国耕地土壤环境质量堪忧[J].北方园艺,2014(9):58.
[2] 王苗苗,孙红文,耿以工,等.农田土壤重金属污染及修复技术研究进展[J].天津农林科技,2018(4):38-41；43.
[3] 陈能场,郑煜基,何晓峰,等.《全国土壤污染状况调查公报》探析[J].农业环境科学学报,2017,36(9):1689-1692.
[4] 李娜.土壤重金属污染的植物修复技术研究现状[J].中国资源综合利用,2021,39(12):106-108.
[5] LIU Zhongchuang,WANG Li'ao,XIAO Hongyan,et al.A Review on Control Factors of Pyrolysis Technology for Plants Containing Heavy Metals[J].Ecotoxicology and Environmental Safety,2020,191:110181.
[6] 王敏捷,盛光遥,王锐.土壤重金属污染修复植物处置技术进展[J].农业资源与环境学报,2021,38(2):151-159.
[7] LIU Zhongchuang,TRAN KHANH-QUANG.A Review on Disposal and Utilization of Phytoremediation Plants Containing Heavy Metals[J].Ecotoxicology and Environmental Safety,2021,226:112821.
[8] SHEN Xing,DAI Min,YANG Jiawei,et al.A Critical Review on the Phytoremediation of Heavy Metals From Environment:Performance and Challenges[J].Chemosphere,2022,291:132979.
[9] PENG Xiaoming,WANG Min,HU Fengxian,et al.Facile Fabrication of Hollow Biochar Carbon-Doped TiO2/CuO Composites for the Photocatalytic Degradation of Ammonia Nitrogen from Aqueous Solution[J].Journal of Alloys and Compounds,2019,770:1055-1063.
[10] LISOWSKI PAWEL,COLMENARES JUAN CARLOS,MAS〖DD（-*3/4〗ˇ〖DD）〗EK ONDR〖DD（-*3/4〗ˇ〖DD）〗EJ,et al.Correction for "Dual Functionality of TiO2/Biochar Hybrid Materials:Photocatalytic Phenol Degradation in the Liquid Phase and Selective Oxidation of Methanol in the Gas Phase"[J].ACS Sustainable Chemistry & Engineering,2017,5(7):6274-6287.
[11] HUANG Haibo,WANG Yu,CAI Fengying,et al.Photodegradation of Rhodamine B Over Biomass-Derived Activated Carbon Supported CdS Nanomaterials Under Visible Irradiation[J].Frontiers in Chemistry,2017,5:1-10.
[12] CHEN Zhi,XING Ruizhi,TANG Jiahuan,et al.Upcycling of Cd Hyperaccumulator Biomass into a CdS@C Nanocomposite with High Photocatalytic Performance[J].ACS Sustainable Chemistry & Engineering,2020,8(3):1388-1395.