Sodium alginate (SA) encapsulation system of Shewanella oneidensis MR-1 mingled with different conductive materials (single-walled carbon nanotube (SWCNT), graphene oxide (GO) or Fe₃O₄) were employed to decolorize of methyl orange (MO). The result of batch experiment showed that beads of SA/SWCNT/S. oneidensis MR-1 and SA/GO/S. oneidensis MR-1 revealed better decolorization capability compared with SA/Fe₃O₄/S. oneidensis MR-1 and SA/S. oneidensis MR-1. Recycle batch experiment revealed that the addition of SWCNT had superiority ability to improve decolorization capability. From cycle 1 to 6, the decolorization capability decreased from 100% to 58.90% with beads of SA/S. oneidensis MR-1, while from 100% to 94.44% with beads of SA/SWCNT/S. oneidensis MR-1 at 2.25 h, respectively. The results of morphology, rheology, and mechanical strength demonstrated that the addition of SWCNT also increased the mechanical strength. Thus, this research would provide the feasibility for recycling of immobilized microbial with higher efficiency and longer lifetime during wastewater treatment.

用不同导电材料（单壁碳纳米管（SWCNT），氧化石墨烯（GO）或Fe ₃ O ₄）混合的Shewanella oneidensis MR-1海藻酸钠（SA）包封系统使甲基橙（MO）脱色。分批实验结果表明，与SA / Fe ₃ O ₄ / S。oneidensis MR-1和SA / Fe ₃ O ₄ / S。oneidensis MR-1和SA / GO / S。oneidensis MR-1和SA / GO / S。oneidensis MR-1珠相比，其脱色能力更好。 SA /沙门氏菌MR-1。循环批处理实验表明，添加SWCNT具有改善脱色能力的优越能力。从周期1到6，SA / SW.oneidensis MR-1的珠子的脱色能力从100％降低到58.90％，而SA / SWCNT / S。oneidensis MR-1的珠子的脱色能力在2.25从100％降低到94.44％。 h，分别。形态，流变学和机械强度的结果表明，添加SWCNT也增加了机械强度。因此，该研究将为废水处理过程中更高效率和更长寿命的固定化微生物的再循环提供可行性。