Recently, the rational design and construction of graphene-like layered transition-metal disulfides (TMDs) with chemical and physical superiorities to act as capacitive desalination (CDI) electrodes for water purification have attracted increasing interest worldwide. Herein, an advanced self-supported MoS₂/CoS₂@TiO₂ nanotube (TNT) hybrid electrode was grown on a TNT scaffold by a hydrothermal process-assisted in-situ growth strategy, and an asymmetric CDI cell was constructed with the as-fabricated MoS₂/CoS₂@TNT and commercial AC electrodes as cathode and anode, respectively. Benefiting from the effective structural feature (i.e., fully open nanosheet-assembled flowers and hierarchical pore alignment) and synergy effect of metal-like CoS₂, state-of-the-art MoS₂ and TNTs with an efficient charge “superhighway”, the MoS₂/CoS₂@TNT electrode achieved a significantly high gravimetric Na⁺ adsorption capacity of 44.22 mg g^-1 in a 600 mg L^-1 NaCl solution at 1.2 V. Moreover, the hybrid electrode possessed excellent regeneration performance with a capacity retention of nearly 100% even after 20 cycles. Most notably, such electrode also demonstrated amazing removal efficiencies close to 90 % for various heavy metal ions (i.e., Fe³⁺, Cr³⁺, Cd²⁺, Pb²⁺, Cu²⁺ and Ni²⁺), revealing its great potential for wastewater purification.

最近，具有化学和物理优势的类石墨烯层状过渡金属二硫化物 (TMD) 的合理设计和构造可用作水净化的电容式脱盐 (CDI) 电极，在全球范围内引起了越来越多的关注。在此，先进的自支撑 MoS ₂ /CoS ₂ @TiO ₂纳米管 (TNT) 混合电极通过水热工艺辅助的原位生长策略在 TNT 支架上生长，并构建了不对称 CDI 电池，如下所示：制备的 MoS ₂ /CoS ₂@TNT 和商用交流电极分别作为阴极和阳极。受益于有效的结构特征（即完全开放的纳米片组装花和分层孔排列）和类金属 CoS ₂、最先进的 MoS ₂和具有高效电荷“高速公路”的 TNT 的协同效应， MoS ₂ /CoS ₂ @TNT 电极在 600 mg L ^{-1 中}实现了44.22 mg g ^-1的显着高重量 Na ⁺吸附容量在 1.2 V 的 NaCl 溶液中。此外，混合电极具有优异的再生性能，即使在 20 次循环后容量保持率也接近 100%。最值得注意的是，这种电极对各种重金属离子（即 Fe ³⁺、Cr ³⁺、Cd ²⁺、Pb ²⁺、Cu ²⁺和 Ni ²⁺）也表现出惊人的接近 90% 的去除效率，揭示了其卓越的性能。废水净化的潜力。