纺织工程学报2026，Vol.4Issue(1)：82-88,7.DOI:10.3969/j.issn.2095-4131.2026.01.007
棉负载BiOBr/C复合材料的制备及吸附-光催化性能研究
Fabrication of cotton-supported BiOBr/C composite and study on its adsorption-photocatalytic performance
摘要
Abstract
To address the challenges faced by bismuth oxybromide(BiOBr)photocatalysts such as difficult recovery,high recombination rate of photogenerated carriers,and weak adsorption capacity,a reusable cotton fabric-supported BiOBr/C composite(CF/BC)was developed to achieve enhanced performance in the synergistic adsorption-photocatalytic degradation of Rhodamine B(RhB).Using cotton fabric as a flexible substrate,we first loaded hydrothermally synthesized carbon microspheres(C)onto the fabric via a dip-coating method,followed by *in situ*growth of BiOBr microsheets in a precursor solution to fabricate the CF/BC composite.The structure of the composite was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),and nitrogen adsorption-desorption tests,and its adsorption and degradation efficiency for RhB(40 mg/L)under visible light was systematically evaluated.The results demonstrated that:A three-tier pore structure comprising BiOBr micropores,C mesopores,and cotton fiber macropores was successfully constructed,achieving a specific surface area of 5.66 m2/g,which is approximately 2.5 times that of pure C(2.29 m2/g).The composite exhibited an RhB adsorption rate(60％～80％)2～4 times higher than pure BiOBr,attributed to the mesoporous enrichment effect of C.During the photocatalytic phase,the composite with the optimal ratio n(BiOBr):n(C)=7:14 degraded 95％of RhB within 2 hours.Its apparent rate constant(1.5×10-3 min-1)was 1.8 times that of pure BiOBr(8.1×10-4min-1),as the carbon layer facilitated charge separation through heterojunction formation.Lower carbon ratios(7:6～7:10)showed faster initial degradation due to exposed active sites but suffered from insufficient adsorption.Higher carbon ratios(7:18～7:22)exhibited reduced performance due to site coverage.Through the synergistic action of the hierarchical pore structure and heterojunction,the composite significantly enhanced both the adsorption capacity and photodegradation efficiency for RhB.Moreover,the flexible carrier effectively resolves the recovery challenge,providing a novel catalytic filter material for dye wastewater treatment.关键词
棉织物/光催化降解/罗丹明B/吸附-降解协同/CF/BC复合材料Key words
cotton fabric/photocatalytic degradation/Rhodamine B/synergistic adsorption-degradation/CF/BC compos-ite分类
轻工纺织引用本文复制引用
王瑞霞,余灵婕,董子靖..棉负载BiOBr/C复合材料的制备及吸附-光催化性能研究[J].纺织工程学报,2026,4(1):82-88,7.基金项目
国家自然科学基金青年项目(62201441) （62201441）
陕西省重点研发计划(2025CY-YBXM-045) （2025CY-YBXM-045）
陕西省教育厅科研计划项目(24JK0472) （24JK0472）
