ZIF-8 metal-organic network/poly(vinyl alcohol) composite for adsorptive removal of various organic dyes

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

“… adsorbent surface area (m 2 g −1 ) reaction condition organic dye capacity (mg g −1 ) ref. metal–organic framework (MOF) 166.6 Zr-MOFs, pH = 7, [100] mg l −1 malachite green 234.2 [ 68 ] CoCr 2 O 4 nanoparticles 8–17 nm 8 nm catalyst, pH = 7, [30] o mg l −1 Congo red 59.4 [ 69 ] ZIF-8 MOF/PVA composite 1704.03 0.4 mg ml −1 , pH = 3–10, [50] o mg l −1 Congo red 829.39 [ 70 ] natural Iraqi bentonite clay 30.6 pH = 5.6, [150] mg l −1 methylene blue 253.2 [ 71 ] chitosan/coal fly ash composite 2.12 adsorbent dose: 0.07 g at 45°C, pH = 4, [100] mg l −1 reactive red 120 237.7 [ 72 ] Chinese yam peel-modified polypyrrole 79.96 adsorbent dose: 10 g l −1 , at 45°C, pH = 4–7, [100] mg l −1 Congo red 86.66 [ 73 ] breadfruit peel — adsorbent dose: 0.04 g at 25°C, pH = 11, [250] mg l −1 crystal v...…”