In several recent simulation studies, grand-canonical Monte Carlo (GCMC) simulations were employed to predict adsorption isotherms of organic or inorganic contaminants in different zeolites. As high uptakes were predicted for cloverite in gallophosphate form or, in one case, another -CLO-type structure, this framework was proposed as a particularly promising system for contaminant removal in the context of environmental remediation. The following studies are discussed in more detail in this comment: o In one paper, abbreviated SN2020 for convenience, the adsorption of three drug molecules, ciprofloxacin, diclofenac, and chloramphenicol, was investigated. The conclusions of this paper state: "According to the molecular simulation results in this research, CLO zeolite has proved to be the satisfactory zeolite suited for adsorption of diclofenac, ciprofloxacin and chloramphenicol […]." o More recently, a similar approach was used to study the adsorption of various chlorinated hydrocarbons like hexachlorobenzene (HCB). In the abstract of this paper, abbreviated JC2024, it is highlighted that "[i]t was found that CLO (a cubic microporous gallophosphate) demonstrated the highest adsorption capacity for HCB among 245 zeolites, with a loading capacity of 65.84 wt%."