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A facile route for fabrication of an Sn doped 1T–2H MoS2 few-layer structure embedded in N/P co-doped bio-carbon is initially developed using natural chlorella as an adsorbent and a nanoreactor.

Here, The biosorption process for the removal of methylene blue (MB) was developed using three-dimensional printed biocomposite scaffolds obtained from Polylactide / Poly(butylene adipate-coterephthalate) (PLA/PBAT)-immobilized biomass of Chlorella pyrenoidosa (PIBCP). The adsorption capacity of the 3D printed PIBCP was carried out. And the effects of adsorbent dose, initial dye concentration, solution pH, ionic strength, temperature, and contact time on the adsorption performances were discussed. The results show that the decolorization rate for methylene blue on the 3D printed PIBCP30 (with 30% mass of Chlorella pyrenoidosa) is 92.66% at the adsorption time of 24 h. The material also shows a good recyclability to have 72% of removal efficiency after six cycles. Kinetic and adsorption isotherm models indicate that the adsorption of methylene blue onto the 3D printed PIBCP30 occurs mainly through chemisorption. Langmuir maximum adsorption capability of methylene blue on the 3D printed PIBCP30 is calculated to be of 35.21 mg/g (100 mg/ g, 298.15 K) . The adsorption is determined to be endothermic and spontaneous. The results indicate that Polylactide/Poly (butylene adipate-coterephthalate) (PLA/PBAT)-immobilized biomass of Chlorella pyrenoidosa (PIBCP) is a promising material for dye removal and the 3D printing technique can be employed to fabricate adsorbent for large-scale wastewater treatment.

In this paper, poly(butylene succinate) (PBS) with a low melting point and a similar performance to polyethylene is employed as a printing material; talc is introduced into the matrix to enhance the melt strength of pure PBS during printing. The PBS/talc composite 3D printing filament is prepared by melt extrusion, and the thermal, mechanical, morphological, and rheological properties of the composites are investigated. The results show that the addition of talc to PBS leads to an increase in crystallization temperature. In addition, the tensile and flexural strengths of the injection‐molded specimens increase when the talc concentration increases. However, the mechanical properties of the printed specimens exhibit an opposite variation trend due to their distinct forming process. The printing temperature is 135 °C, which is far lower than those of commercial grade polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) printing filaments. Scanning electron microscopy (SEM) images show that increasing the talc concentration creates better printed formability and well‐organized fracture surface structures. By comparing printed fishbones, the results suggest that the presence of talc leads to a good printing performance with the composite. Furthermore, the rheological results reveal that η*, G′, and G″ are enhanced by the addition of talc.