The purpose of a literature review is to provide an overview of literature (scholarly articles, books, etc.) on a particular subject matter.
Literature reviews are not meant to be persuasive or argumentative. They are meant to be summative and provide an analysis on information that has already been published on the topic being researched.
Journal articles typically contain a section that is a literature review, or review of the literature. It may not always be called that, but it is typically the section located right after the introduction. As you are reading journal articles to reference in your literature review, look at how they are structuring their own literature reviews. These are scaled down versions of what you will be doing, so use them as mini-examples.
Below you will find some example of Literature Reviews that might be helpful to glance at: