Dear authors, The manuscript related to metal-based nanocomposite materials for efficient photocatalytic degradation of phenanthrene from aqueous solutions has been reviewed. As one of the selected reviewers, I read your manuscript carefully. Though the authors have written it very well yet some minor improvements are needed to be carried out. I agree that metal-based nanocomposite materials are doing pretty well for efficient photocatalytic degradation of hydrocarbon. They are also a good material for textiles and dyes. Several works have been reported in this domain, which is difficult to cover under one study. Such as titanate nanowires/NiO nanoflakes core/shell heterostructured nanonanocomposite catalyst for the methylene blue photodegradation, indoor decontamination using nanocoated woven polyester fabric, wrinkle-resistant, breathable, anti UV nanocoated woven polyester fabric. The authors have summarized the research in a very nice way. I wonder if the authors might discuss the aspects of indoor decontaminating textiles by photocatalytic oxidation. The review articles with schematics are preferred rather than long discussions. Can the authors add some Figures to gain the readers' attention?