The environmental repercussions of wastewater from the dye process mean that it is very important to obtain an eco-friendly photocatalyst that would degrade wastewater. Herein, bismuth tungstate/graphene oxide (Bi2WO6/GO) composites are fabricated through in-situ hydrothermal reaction and then the Bi2WO6/GO photocatalysts are deposited onto polyethylene terephthalate (PET) fabric. The obtained Bi2WO6/GO deposited PET fabrics are then characterized through XPS, Raman, SEM, TEM, XRD, UV-vis, BET method and photoluminescence spectroscopy (PL) to investigate their chemical and crystal structures, morphology, optical property, surface area and photochemical properties. Photocatalytic performance is studied through examining the rate of degrading rhodamine B (RhB) under visible light. Surface of PET fibers is densely covered with Bi2WO6/GO. Bi2WO6/GO deposited PET fabrics show a broad absorption band in the visible spectra. Removal rate of RhB on the Bi2WO6/GO deposited PET fabric is the highest with the GO content of 2 g/L (labeled as Bi2WO6/2 g/LGO). The result of active species experiment shows that superoxide radicals (·O2−) plays a major role in the degradation of RhB. Moreover, Bi2WO6/2 g/LGO deposited PET fabric shows excellent cycle stability of photocatalytic degradation for RhB. The findings in this work can be extended to preparation other types of composite on the textile for photocatalysis, which can be applied to remove dyes in the wastewater produced by the textile or leather industry.

中文翻译：

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可见光驱动的Bi ₂ WO ₆ / GO沉积在聚对苯二甲酸乙二醇酯织物上的罗丹明B光催化降解

染料工艺废水对环境的影响意味着，获得一种可降解废水的环保型光催化剂非常重要。在此，通过原位水热反应制备钨酸铋/氧化石墨烯（Bi2WO6 / GO）复合材料，然后将Bi2WO6 / GO光催化剂沉积到聚对苯二甲酸乙二醇酯（PET）织物上。然后通过XPS，拉曼，SEM，TEM，XRD，UV-vis，BET方法和光致发光光谱（PL）对获得的Bi2WO6 / GO沉积的PET织物进行表征，以研究其化学和晶体结构，形态，光学性质，表面积和光化学性质。通过研究可见光下若丹明B（RhB）的降解速率来研究光催化性能。PET纤维的表面被Bi2WO6 / GO密集地覆盖。Bi2WO6 / GO沉积的PET织物在可见光谱中显示出较宽的吸收带。在Bi2WO6 / GO沉积的PET织物上RhB的去除率最高，GO含量为2 g / L（标记为Bi2WO6 / 2 g / LGO）。活性物种实验的结果表明，超氧自由基（·O2-）在RhB的降解中起主要作用。此外，Bi2WO6 / 2 g / LGO沉积的PET织物对RhB的光催化降解表现出出色的循环稳定性。这项工作的发现可以扩展到在纺织品上制备其他类型的复合材料以进行光催化，该复合材料可用于去除纺织品或皮革行业产生的废水中的染料。在Bi2WO6 / GO沉积的PET织物上RhB的去除率最高，GO含量为2 g / L（标记为Bi2WO6 / 2 g / LGO）。活性物种实验的结果表明，超氧自由基（·O2-）在RhB的降解中起主要作用。此外，Bi2WO6 / 2 g / LGO沉积的PET织物对RhB的光催化降解表现出出色的循环稳定性。这项工作的发现可以扩展到在纺织品上制备其他类型的复合材料以进行光催化，该复合材料可用于去除纺织品或皮革行业产生的废水中的染料。在Bi2WO6 / GO沉积的PET织物上RhB的去除率最高，GO含量为2 g / L（标记为Bi2WO6 / 2 g / LGO）。活性物种实验的结果表明，超氧自由基（·O2-）在RhB的降解中起主要作用。此外，Bi2WO6 / 2 g / LGO沉积的PET织物对RhB的光催化降解表现出出色的循环稳定性。这项工作的发现可以扩展到在纺织品上制备其他类型的复合材料以进行光催化，该复合材料可用于去除纺织品或皮革行业产生的废水中的染料。