Development and designing of effective visible light photocatalysts to overcome the drastrous situation of water pollution requires material with excellent charge transferring skills. In this regard, an efficient ternary nanocomposite photocatalyst comprised of SnS nanostructure linked with polypyrrole-doped carbon black (PPC) and platinum nanoparticles (Pt NPs) was successfully fabricated. Effective ternary photocatalyst was synthesized by hydrothermal technique followed by ultra-sonication and photo-reduction methodologies. The XRD measurements confirmed the hexagonal phase of SnS, and the proper formation of nanocomposite. TEM examination revealed Pt NPs of 5–15 nm in size, dense cocoon like layered structure of PPC along with irregular pellets of SnS. Acquired diffuse reflectance data confirmed the visible light band gap of synthesized nanomaterials. The Pt@PPC/SnS photocatalyst showed excellent destructive potential under visible light with 92.40 % removal of antibiotic gemifloxacin (GFX) in 30 minutes, almost 347 % more efficient than bare SnS, and was found to be ultrafast for the removal of methylene blue (MB) with total elimination of dye just in 10 minutes. The photoluminescence and photocurrent transient analysis revealed enhanced light absorption capability and increased photo-induced carrier transfer with effective separation behavior, together with increased effective surface area of the ternary photocatalyst as evidenced by the BET surface area measurement.

中文翻译：

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轻松合成铂/聚吡咯-炭黑/SnS2纳米复合材料，用于可见光下高效光催化去除吉米沙星

开发和设计有效的可见光光催化剂来克服严重的水污染问题需要具有优异电荷转移能力的材料。在这方面，成功制备了一种由SnS纳米结构与聚吡咯掺杂炭黑（PPC）和铂纳米颗粒（Pt NPs）连接组成的高效三元纳米复合光催化剂。通过水热技术、超声处理和光还原方法合成了有效的三元光催化剂。 XRD 测量证实了 SnS 的六方相以及纳米复合材料的正确形成。 TEM 检查显示尺寸为 5-15 nm 的 Pt NP、PPC 的致密茧状层状结构以及不规则的 SnS 颗粒。获得的漫反射数据证实了合成纳米材料的可见光带隙。 Pt@PPC/SnS 光催化剂在可见光下表现出优异的破坏潜力，30 分钟内抗生素吉米沙星 (GFX) 的去除率达到 92.40%，比裸 SnS 的效率高出近 347%，并且被发现可以超快地去除亚甲基蓝（ MB) 只需 10 分钟即可完全消除染料。光致发光和光电流瞬态分析表明，光吸收能力增强，光诱导载流子转移增加，具有有效的分离行为，同时三元光催化剂的有效表面积增加，如 BET 表面积测量所证明的。