Ternary compound photocatalyst (Cr₂S₃-GO/TiO₂ composite) was prepared by combining graphene oxide (GO) and titanium oxide (TiO₂) via sol–gel technique. This synthesized composite was characterized by various methods of analysis (XPS, XRD, SEM, EDX, BET, TGA and TEM). The as-synthesized composite exhibited enhanced photocatalytic performance and degradation rate yielded 98.3, 96.6 and 86.3% on methylene blue, rhodamine B and methyl orange, respectively, under the visible light for 120 min. Cr₂S₃-GO/TiO₂ composite achieved the best photocatalytic activity with 0.3 mol of TiO₂. This might be due to the collaborative interaction between increased defects of graphene oxide and photocatalytic effect of Cr₂S₃. Kinetic model data best fitted with pseudo-first-order model with regression coefficient values of R² ≥ 0.96. This provides a good opportunity for increased photocatalytic activity in the treatment of wastewater from organic pollutants.

通过溶胶-凝胶技术将氧化石墨烯（GO）和氧化钛（TiO ₂）结合制备三元复合光催化剂（Cr ₂ S ₃ -GO / TiO ₂复合材料）。通过各种分析方法（XPS，XRD，SEM，EDX，BET，TGA和TEM）对合成的复合材料进行了表征。合成后的复合材料在可见光下持续120分钟，对亚甲基蓝，若丹明B和甲基橙的光催化性能增强，降解率分别为98.3％，96.6％和86.3％。Cr ₂ S ₃ -GO / TiO ₂复合材料以0.3 mol的TiO ₂达到了最佳的光催化活性。。这可能是由于氧化石墨烯缺陷增加与Cr ₂ S _3的光催化作用之间的协同相互作用。动力学模型数据最好装有有R的回归系数的值的伪一阶模型²  ≥0.96。这为提高光催化活性处理有机污染物废水提供了一个很好的机会。